@misc{indiciae18139821b4fa,
  title = {Map showing earthquake epicenters (1964-81) in Yellowstone National Park and vicinity, Wyoming, Idaho, and Montana},
  author = {A.D. Pitt},
  year = {1989},
  doi = {10.3133/mf2022},
  url = {https://pubs.usgs.gov/publication/mf2022},
  note = {Source identifier: mf2022}
}